Compressed air cartridge



FIG. 1 is a perspective view of a compressed air cartridge showing a new design;

FIG. 2 is a front elevational view thereof, the rear, right side and left side being mirror images;

FIG. 3 is a top plan view thereof front elevational view thereof; and,

FIG. 4 is a bottom plan view thereof. 

CLAIM The ornamental design for a compressed air cartridge, as shown and described. 